The role of markets Flashcards

1
Q

What is meant by specialisation and the division of labour?

A

This occurs when individuals, firms, or countries focus on producing a limited range of goods or services. By concentrating on what they are best at, they can increase productivity and efficiency.

This involves breaking down the production process into different stages, with each worker focusing on a specific task. This increases efficiency by allowing workers to become skilled in their assigned tasks.

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2
Q

How do specialisation and the division help to address the basic economic
problem?

A

The basic economic problem is scarcity-limited resources versus unlimited wants. Specialisation and division of labour increase productivity, meaning more goods and services can be produced with the same resources, helping to better allocate scarce resources.

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3
Q

What is a barter system?

A

This is an exchange system where goods and services are traded directly without money. For example, a farmer might exchange grain for meat from a butcher.

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3
Q

What is meant by “double coincidence of wants”?

A

In a barter system, both parties must want what the other has to offer at the same time. For example, if the farmer wants meat and the butcher wants grain, a trade can happen.

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4
Q

What are the various roles of money?

A
  1. Medium of Exchange: It facilitates trade by eliminating the need for a double coincidence of wants.
  2. Store of Value: It holds value over time, allowing individuals to save.
  3. Unit of Account: It provides a standard measure of value, making it easier to compare prices.
  4. Standard of Deferred Payment:
    It allows for future payments, like loans or credit.
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5
Q

Why is money acting as a medium of exchange so important in an economy?

A

Money simplifies transactions by allowing people to trade without needing a direct barter. This enables more complex and larger economies to function smoothly.

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6
Q

What is productivity in economics, and why is it so important?

A

This refers to the amount of goods or services produced per unit of input (e.g., labour or capital). Higher productivity means more output with the same resources, which is crucial for economic growth.

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7
Q

What do we mean by “demand” in economics?

A

The quantity of a good or service consumers are willing and able to buy at various prices during a specific period.

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8
Q

Why is the demand curve downward sloping?

A

It slopes downward because, all else being equal, as the price of a good falls, the quantity demanded increases (law of demand).

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9
Q

How does a change in price affect the quantity demanded in a market?

A

A fall in price typically increases the quantity demanded, while a rise in price decreases it.

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10
Q

What causes the entire demand curve to shift?

A

Changes in non-price factors such as income, tastes, prices of substitutes or complements, and consumer expectations shift the entire demand curve.

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11
Q

How do we derive demand curves for an entire market?

A

Derived by summing the individual demand curves of all consumers in the market.

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12
Q

What is meant by joint demand in economics?

A

This occurs when two goods are demanded together, such as printers and ink.

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13
Q

What is meant by competitive demand in economics?

A

Occurs when goods are substitutes for each other, like tea and coffee.

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14
Q

What is meant by composite demand in economics?

A

When a good is demanded for multiple uses, like oil (used for fuel, plastics, etc.).

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15
Q

What are complements in economics?

A

Goods consumed together, like bread and butter.

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16
Q

What are substitutes in economics?

A

Goods that can replace each other, like Coke and Pepsi.

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17
Q

What do we mean by “supply” in economics?

A

The quantity of a good or service that producers are willing and able to sell at various prices during a specific period.

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18
Q

How do we derive the supply curve?

A

The upward slope reflects that as price increases, the quantity supp’” increases.

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19
Q

Why is the market supply curve upward sloping?

A
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20
Q

What is an increase / decrease in supply?

A
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21
Q

What factors would cause an entire S-curve to shift?

A

Factors like changes in production costs, technology, taxes, or subsidies shift the entire curve.

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22
Q

How do we derive supply curves for an entire market?

A

Individual Firm Supply Curves: Determine each firm’s supply curve based on its marginal cost, typically above average variable costs.
Horizontal Summation: Sum the quantities supplied by all firms at each price level to create the market supply curve.
Consider Factors: Account for the number of firms, market entry/exit, and external influences (like technology and input prices) that can shift the supply curve.

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23
Q

What is meant by joint supply in economics?

A

Answer: Joint supply occurs when the production of one good results in the production of another good. For example, when cattle are raised for beef, their hides can also be used to produce leather.

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24
What is meant by competitive supply in economics?
Competitive supply refers to the situation where two goods compete for the same resources. An increase in the production of one good can lead to a decrease in the production of another (e.g., wheat and corn)
25
What is consumer surplus?
Consumer surplus is the difference between what consumers are willing to pay for a good or service and what they actually pay. It measures the benefit to consumers from purchasing at a lower price.
25
What is producer surplus?
Producer surplus is the difference between the price at which producers are willing to sell a good or service and the actual market price. It reflects the benefit to producers from selling at a higher price.
26
What causes consumer and producer surplus to change?
Changes in consumer and producer surplus can be caused by shifts in supply and demand, changes in market prices, and government interventions (like taxes or subsidies).
27
How do changes in demand affect consumer and producer surplus?
An increase in demand typically raises both consumer and producer surplus, as consumers pay more for a good they value and producers benefit from higher prices.
28
How do changes in supply affect consumer and producer surplus?
An increase in supply usually increases consumer surplus (lower prices) and can decrease producer surplus if prices fall significantly.
28
How might the existence of a monopoly affect the consumer and producer surplus in a market?
A monopoly can reduce consumer surplus by charging higher prices and limiting output, while increasing producer surplus due to greater market power and profits.
29
What is meant by ceteris paribus in economics?
Ceteris paribus is a Latin phrase meaning "all other things being equal." It allows economists to isolate the effect of one variable while assuming other relevant factors remain constant.
30
What is market equilibrium?
Market equilibrium is the point where the quantity demanded equals the quantity supplied, resulting in a stable market price.
31
What is meant by excess supply?
Excess supply occurs when the quantity supplied exceeds the quantity demanded at a given price, often leading to downward pressure on prices.
31
What is meant by excess demand?
Excess demand occurs when the quantity demanded exceeds the quantity supplied at a given price, typically resulting in upward pressure on prices.
32
Is the price-output (P Q) combination in a market always the equilibrium P Q combination?
The price-output (P-Q) combination in a market is not always the equilibrium combination. Prices can fluctuate due to external factors, leading to temporary disequilibrium situations.
33
Do markets change to a new equilibrium immediately, gradually or never?
Markets change to a new equilibrium gradually, not immediately. The adjustment can take time due to factors like price stickiness, consumer and producer responses, and market information dissemination.
34
What are complements in economics?
Complements are goods that are consumed together, meaning that an increase in the price of one leads to a decrease in the demand for the other (e.g., coffee and cream)
35
What are substitutes in economics?
Substitutes are goods that can replace each other; an increase in the price of one good typically leads to an increase in the demand for the other (e.g., butter and margarine).
36
What change in a market may cause equilibrium price to rise, but equilibrium quantity to fall?
A decrease in supply, such as due to higher production costs, can cause the equilibrium price to rise while the equilibrium quantity falls.
37
What change in a market may cause both equilibrium price and equilibrium quantity to rise?
An increase in demand, such as due to rising consumer income, can lead to both equilibrium price and quantity rising.
38
What change in a market may cause both equilibrium price and equilibrium quantity to fall?
A decrease in demand, such as due to changes in consumer preferences away from a product, can cause both equilibrium price and quantity to fall.
39
What change in a market may cause equilibrium price to fall, but equilibrium quantity to rise?
An increase in supply, such as due to technological advancements reducing production costs, can lead to a decrease in equilibrium price while quantity increases
40
List several changes in a market which may cause a contraction in supply.
Increased production costs (e.g., higher wages or raw material prices) Regulatory changes (e.g., stricter environmental laws) Natural disasters affecting production capabilities
41
List several changes in a market which may cause an extension in supply.
Technological improvements Decreases in production costs Favorable weather conditions for agriculture
42
List several changes in a market which may cause a contraction in demand.
Decrease in consumer income (for normal goods) Increased prices of substitutes Decreased consumer preferences or tastes for the product
43
List several changes in a market which may cause an extension in demand.
Increase in consumer income (for normal goods) Decrease in prices of substitutes Increased consumer preferences or tastes for the product
44
Diagram: draw an increase in demand (and list potential causes).
Increased consumer income Changes in consumer preferences Increase in the price of substitutes
45
Diagram: draw a decrease in demand (and list potential causes).
Decrease in consumer income Decrease in consumer preferences Increase in the price of substitutes
46
Diagram: draw an increase in supply (and list potential causes).
Technological advancements Decrease in production costs Improved production processes
47
Diagram: draw a decrease in supply (and list potential causes).
Increased production costs Regulatory constraints Natural disasters affecting supply
48
What is elasticity in economics?
Elasticity measures the responsiveness of one variable to changes in another variable, indicating how much demand or supply changes when prices or other factors change.
49
What are the 4 types of elasticity in A-level economics?
Price Elasticity of Demand (PED) Income Elasticity of Demand (YED) Cross Elasticity of Demand (XED) Price Elasticity of Supply (PES)
50
What does the actual PED number tell us?
PED < 1: Inelastic demand PED = 1: Unit elastic demand PED > 1: Elastic demand
50
What is PED and how is it calculated?
Answer: PED = Percentage change in quantity demanded Percentage change in price PED= Percentage change in price Percentage change in quantity demanded
51
How do we illustrate PED on a diagram?
PED is illustrated on a demand curve, where the slope reflects the relationship between price changes and quantity demanded. A flatter curve indicates more elastic demand, while a steeper curve indicates inelastic demand.
52
What is the relationship between PED, price, revenue and profit?
Elastic Demand: Lowering price increases total revenue. Inelastic Demand: Lowering price decreases total revenue. Understanding PED helps firms set prices to maximize revenue and profit
53
Is the PED along a demand curve always the same?
No, PED varies along a linear demand curve. It is more elastic at higher prices and less elastic at lower prices.
54
Why is it important for a firm to know it’s PED?
Firms use PED to inform pricing strategies, forecast changes in sales due to price changes, and make production decisions
55
What factors determine a firm’s PED?
Availability of substitutes Necessity vs. luxury goods Proportion of income spent on the good Time period considered
56
What is YED and how is it calculated?
Calculation: YED = Percentage change in quantity demanded Percentage change in income YED= Percentage change in income Percentage change in quantity demanded ​
57
What does the actual YED number tell us?
YED > 1: Luxury goods (demand increases more than income). 0 < YED < 1: Normal goods (demand increases less than income). YED < 0: Inferior goods (demand decreases as income increases).
58
What are normal and inferior goods?
Normal Goods: Demand increases with an increase in income. Inferior Goods: Demand decreases with an increase in income.
59
What does the actual XED number tell us?
Calculation: XED = Percentage change in quantity demanded of Good A Percentage change in price of Good B XED= Percentage change in price of Good B Percentage change in quantity demanded of Good A ​
60
What is XED and how is it calculated?
XED > 0: Substitute goods (demand for one increases as the price of the other increases). XED < 0: Complementary goods (demand for one decreases as the price of the other increases). Price Elasticity of Supply (PES)
61
What is PES and how is it calculated?
Calculation: PES = Percentage change in quantity supplied Percentage change in price PES= Percentage change in price Percentage change in quantity supplied ​
62
Which factors determine PES?
Time period for production Flexibility of production processes Availability of factors of production Stock levels
62
What factors determine the YED of a good/service?
63
What is elasticity in economics?